Doppel Is A Wearable That Puts A Pulse On Your Pulse

 The wacky world of wearables has a new would-be entrant: meet doppel, a wrist-worn device that’s not a smartwatch, not a fitness tracker, and not (just) a heart-rate monitor. It’s a psychophysiology wearable for people who want to be able to influence how they’re feeling via a tactile rhythm. Read More